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Poster: billbarstad Date: Jul 5, 2011 5:48pm
Forum: feature_films Subject: IA Encoder Changes

Well, it looks like IA did some under the hood work on their video encoder software again - what is it, the 3rd time in the last few years? After 2 of those, my videos wouldn't derive anymore. Anyway, 3 of the last 4 movies I've uploaded recently failed to derive, and those were videos that needed editing to remove additional audio tracks or sales promos tacked on at the end of the video. I'm tired of having to change out uploaded files to get IA's encoder to derive properly. Not gonna do it anymore, especially since they still haven't got the basics right, as Moongleam acidulous affirms here. Peace.

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Poster: Jeff Kaplan Date: Jul 5, 2011 11:28pm
Forum: feature_films Subject: Re: IA Encoder Changes

hi. i'm interested in helping you as well as making the archive.org features work better. can you please post links to the 3 items that didn't derive?

thanks.

jeff

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Poster: Moongleam Date: Jul 7, 2011 7:08am
Forum: feature_films Subject: Re: IA Encoder Changes

When the Archive derived this, it got the aspect-ratio wrong:
http://www.archive.org/download/Big_Combo_1955/Big_Combo_1955.mkv

Apparently, the program doing the deriving assumed that the pixels in the source file were square, despite the embedded aspect-ratio information.

(Later, I uploaded a version of the movie with square pixels and made the Archive derive it again.)

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Poster: tracey pooh Date: Jul 7, 2011 7:41pm
Forum: feature_films Subject: Re: IA Encoder Changes

but you can see here, from:

http://catalogd.us.archive.org/log_show.php?task_id=79015877

that the video is *not* identified as rectangular pixels:

# Stream #0.0: Video: h264 (High), yuv420p, 576x432 [PAR 1:1 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 50 tbc

and JSYK, i take rectangular pixels *super* seriously 8-)
so there you've got detected square pixels (1:1) and a Display Aspect Ratio
of 4:3. that's straight up from libav/ffmpeg -- the standard used by most opensource tools.

what did you use to encode the video? did it *perhaps* not set the bit right? or do you think libav is not detecting right?
did mplayer/vlc or similar tool based on libav "play it right"?

cheers,
-tracey, staff




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Poster: Jeff Kaplan Date: Jul 7, 2011 7:12pm
Forum: feature_films Subject: Re: IA Encoder Changes

Thanks. I'll pass this along to the lead engineer.

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Poster: tracey pooh Date: Jul 7, 2011 7:37pm
Forum: feature_films Subject: Re: IA Encoder Changes

and btw...
if you *want* our ~768 Kb/sec .mp4 "derivative", since you're uploading
a file with a ".mp4" suffix,
you could rename it to a ".mpeg4" as a workaround to make sure *we*
make the ".mp4" named file...

and yah, we changed things, it's true -- like how to handle files with
suffix .mp4. there's tradeoffs either way, and a very hard "edge" to sort out
either way...

cheers,
-tracey

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Poster: billbarstad Date: Jul 7, 2011 8:26pm
Forum: feature_films Subject: Re: IA Encoder Changes

I will remember to use the mpeg4 suffix in the future. Is there a way for me to rename a file already uploaded?

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Poster: tracey pooh Date: Jul 7, 2011 8:28pm
Forum: feature_films Subject: Re: IA Encoder Changes

yes!
find the "Edit item" link (when you are logged in) near the upper right
"Upload" button when looking at the /details/ page
and then you can use the Edit files thingy to rename the file.

maybe try the other items that aren't:
The_Phantom_Empire_1935
http://catalogd.us.archive.org/log_show.php?task_id=79206712

and we can try from there?
(meanwhile trying to rederive the item mentioned above to see how that goes w/ some code changes in my dev box...)

thanks!
-tracey

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Poster: billbarstad Date: Jul 8, 2011 8:21pm
Forum: feature_films Subject: Re: IA Encoder Changes

Changing the extension on "The Little Shop of Horrors" files worked(!), but "The Phantom Empire" now has a 2.6GB Ogg derivative.

later...

I deleted the OGV file, and changed the extension for "The Phantom Empire" to MPEG4.

This post was modified by billbarstad on 2011-07-09 03:21:08

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Poster: tracey pooh Date: Jul 9, 2011 11:23am
Forum: feature_films Subject: Re: IA Encoder Changes

ok, i *think* your items and derivs look good now?

the one i was most curious now about was
http://www.archive.org/details/The_Phantom_Empire_1935

looks like you maybe removed the derivs and renamed your orig file from .mp4 to .mpeg4 and then a normal derive just kind of "worked" -- does that sound about right?


btw, i'm not sure this will work per se (depends a bit on the mpeg4 source) -- but do you know about "qt-faststart" (most easily found and buildable in source of "ffmpeg" as a subdirectory util). but in the future, you can often use it to move the "mov" atoms related to video information from the end to the start of the file. that will often make a video "play more instantly" when dropped into a mp4 playable browser like safari or versions of firefox-- and when dropped into a flash plugin (thought i saw some feedback in forums or on one of the items could be related?) (if, say, all that info is at the end of the mpeg4 -- the flash plugin or [video] tag in a /details/ video playback page will tend to require the client browser to *first* download the *entire* file before it will start -- eek! 8-)

just in case that helps at all!

cheers,
-tracey

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Poster: billbarstad Date: Jul 9, 2011 6:15pm
Forum: feature_films Subject: Re: IA Encoder Changes

"looks like you maybe removed the derivs and renamed your orig file from .mp4 to .mpeg4 and then a normal derive just kind of "worked" -- does that sound about right?"

Yes, I did those things.

Thanks for the info on qt-faststart. I found a pre-built Mac app that I hope will fix the demuxed edited MPEG4 files I make as you describe. Very glad the .mp4 to .mpeg4 trick worked.

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Poster: billbarstad Date: Jul 7, 2011 8:49pm
Forum: feature_films Subject: Re: IA Encoder Changes

Misread your post. I thought you had asked me to start the derivation.

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Poster: billbarstad Date: Jul 7, 2011 8:48pm
Forum: feature_films Subject: Re: IA Encoder Changes

Ok. I renamed the two "The Little Shop of Horrors" movies. "The Phantom Empire" was already queued for derivation.

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Poster: tracey pooh Date: Jul 7, 2011 7:33pm
Forum: feature_films Subject: Re: IA Encoder Changes

well, then! just for you, bill 8-)

working on path that seems to id your vid a bit better (and instead
of trying to squirt out 90,000 fps will try an alternate method...)

i'm trying
The_Phantom_Empire_1935
now...
-tracey, staff